Faculty Profiles - TANIGUCHI Haruka

写真a

TANIGUCHI Haruka

Organization

Graduate School of Engineering Applied Physics 3 Lecturer

Graduate School

Graduate School of Engineering

Undergraduate School

School of Engineering Physical Science and Engineering

Research Interests 2

strongly correlated electrons
pressure

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Research Areas 1

Natural Science / Magnetism, superconductivity and strongly correlated systems

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Research History 3

Nagoya University Department of Applied Physics, Graduate School of Engineering Lecturer

2023.1
Iwate University Faculty of Science and Engineering Department of Physical Science and Materials Engineering Studies in Mathematical Science and Physics Assistant Professor

2016.4 - 2022.12
Iwate University Faculty of Engineering Department of Materials Science and Engineering Assistant Professor

2014.4 - 2016.3

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Education 3

Kyoto University Graduate School, Division of Natural Science Division of Physics and Astronomy

- 2014.3

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Country： Japan
Kyoto University Graduate School, Division of Natural Science Division of Physics and Astronomy

- 2011.3

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Country： Japan
Kyoto University

- 2009.3

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Country： Japan

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Professional Memberships 3

日本高圧力学会

2020.1
物性グループ

2015.5 - 2022.12
THE PHYSICAL SOCIETY OF JAPAN

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Committee Memberships 3

日本物理学会領域８運営委員

2019.4 - 2020.3

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Committee type：Academic society
日本物理学会2017年秋季大会実行委員

2016.9 - 2017.9
物性グループ岩手大学代表者

2015.5 - 2022.12

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Awards 1

第６１回原田研究奨励賞

2021.7 本多記念会電荷整列マンガン酸化物におけるポーラロン秩序と負の磁気誘電効果

谷口晴香

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Country：Japan

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Papers 30

Anisotropic Seebeck coefficient of Sr2RuO4 in the incoherent regime Reviewed International coauthorship

Ramzy Daou, Sylvie Hebert, Gaël Grissonnanche, Elena Hassinger, Louis Taillefer, Haruka Taniguchi, Yoshiteru Maeno, Alexandra S. Gibbs, Andrew P. Mackenzie

Physical Review B Vol. 108 ( 12 ) 2023.9

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Language：English Publishing type：Research paper (scientific journal) Publisher：American Physical Society ({APS})

DOI： 10.1103/physrevb.108.l121106
Onset Temperatures for Superconducting Fluctuations in Te-annealed FeTe1−xSex Single Crystals: Evidence for the BCS–BEC Crossover Reviewed

Yu Uezono, Takumi Otsuka, Shotaro Hagisawa, Haruka Taniguchi, Michiaki Matsukawa, Takenori Fujii, Takao Watanabe

JPS Conference Proceedings 2023.5

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Language：English Publishing type：Research paper (international conference proceedings) Publisher：Journal of the Physical Society of Japan

DOI： 10.7566/jpscp.38.011023
Pressure Effect on the Dielectric Anomaly in the Antiferromagnetic Manganite CaMn0.85Sb0.15O3 Reviewed International coauthorship

Haruka Taniguchi, Tomoki Toyama, Taisei Minatogawa, Hitoshi Kurihashi, Satoru Kobayashi, Michiaki Matsukawa, and Ramanathan Suryanarayanan

JPS Conference Proceedings 2023.5

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Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (international conference proceedings) Publisher：Journal of the Physical Society of Japan

DOI： 10.7566/JPSCP.38.011122
Enhanced photocatalytic activities under visible light of double-perovskite oxide semiconductor Ba2Tb(Bi, Sb)O6 with mixed-valence Reviewed

Dayal Chandra Roy, Michiaki Matsukawa, Takanori Yonai, Minami Arakida, Haruka Taniguchi, Kazume Nishidate, Sumio Aisawa, Akiyuki Matsushita, Lin Shiqi

Journal of Materials Science: Materials in Electronics Vol. 34 ( 4 ) 2023.2

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Language：English Publishing type：Research paper (scientific journal)

In this study, we showed the effect of Sb substitution on lattice structures, physical properties and photocatalytic activities for the double-perovskite oxides with mixed valence. High quality powders of Ba2Tb(Bi1-xSbx)O6 (0.1 ≤ x≤ 1.0) were successfully synthesized using a citrate pyrolysis approach. Through partial substitution of Sb at Bi site of this compound, it was possible to design oxidative photocatalysts at lower x, and reduction-type ones at higher x. These findings are discussed on the basis of the conduction and valence band edge potentials of a series of Ba2(Tb, Pr)(Bi, Sb)O6 photocatalysts. The Sb substituted sample with the x = 0.6 composition predicted from the machine learning procedure exhibited the highest performance of methylene blue degradation, which is comparable to typical degradation rates for good perovskite catalysts.

DOI： 10.1007/s10854-022-09542-6

Scopus
Structure, electric transport, and magneto-transport properties of metallic double-chain based PrBa2Cu4O8 with low Ca substitution Reviewed

Takehiro Teramura, Michiaki Matsukawa, Tatsuya Senzaki, Haruka Taniguchi, Kazuhiro Sano, Yoshiaki Ōno, Makoto Hagiwara

Physica B: Condensed Matter Vol. 646 page： 414226 - 414226 2022.8

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Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV

In this study, we showed the crystal structure, electric resistivity, Seebeck and Hall coefficients, magneto-resistance, and magnetic susceptibility of Pr1-xCaxBa2Cu4O8 (x = 0.0, 0.02, and 0.05) are all relevant for our understanding of physical properties along CuO double chains. The lattice parameters of Ca substituted PrBa2Cu4O8 remained almost invariant up to x = 0.05. Contrary to the Ca doping effect in the PrBa2Cu3O7-delta system, the significant increases in the Seebeck and Hall coefficients due to the Ca substitution indicate a decrease in the carrier number. The significant magneto-resistance effect in the parent sample (16% at 10 K) was significantly reduced down to 5% in the x = 0.05 composition. On the basis of the two types of carrier models, we discussed the influence of Ca substitution on the electrical transport and magneto-transport properties.

DOI： 10.1016/j.physb.2022.414226

Web of Science
Functional Materials Synthesis and Physical Properties

Tatsuya Senzaki, Michiaki Matsukawa, Takanori Yonai, Haruka Taniguchi, Akiyuki Matsushita, Takahiko Sasaki, Mokoto Hagiwara

Recent Perspectives in Pyrolysis Research 2022.4

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Publishing type：Part of collection (book) Publisher：IntechOpen

A citrate pyrolysis technique is a unique route to prepare reactive precursor mixtures through an ignition process of concentrated aqueous solution. This procedure enables to synthesize highly homogeneous and fine powders for functional materials. The double-chain based superconductor Pr2Ba4Cu7O15−δ and double perovskite photocatalytic semiconductor Ba2Tb(Bi,Sb)O6 were synthesized by using the citrate pyrolysis technique. For the present sample with a reduction treatment for 72 h, a sharp superconducting transition appeared at an onset temperature Tc,on=26 K accompanied by a zero-resistance state at Tc,zero=22 K. The superconducting volume fraction estimated from the magnetization measurement showed an excellent value of ∼58%. Both reduction treatment in a vacuum and subsequent quenching procedure are needed to realize higher superconductivity due to further oxygen defects. The polycrystalline samples for Ba2Tb(Bi1−x,Sbx)O6 (x=0 and 0.5) were formed in the monoclinic and cubic crystal structures. We conducted the gaseous 2-propanol (IPA) and methylene blue (MB) degradation experiments under a visible light irradiation, to evaluate photocatalytic activities of the powder samples. For the Sb50% substituted sample, the highest performance of MB degradation was observed. The effect of Sb-substitution on the photocatalytic degradation of MB is in direct contrast to that on the IPA decomposition under visible light irradiation. The enhanced photocatalytic properties in the citrate samples are attributed to their morphology, where fine particles are homogeneously distributed with a submicron order.

DOI： 10.5772/intechopen.100241
Revised phase diagram of the high-Tc cuprate superconductor Pb-doped Bi2Sr2CaCu2O8+d revealed by anisotropic transport measurements Reviewed

Keiichi Harada, Yuki Teramoto, Tomohiro Usui, Kenji Itaka, Takenori Fujii, Takashi Noji, Haruka Taniguchi, Michiaki Matsukawa, Hajime Ishikawa, Koichi Kindo, Daniel S. Dessau, Takao Watanabe

Physical Review B Vol. 105 page： 085131 2022.2

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Language：English Publishing type：Research paper (scientific journal)
Enhanced superconducting properties of double-chain based superconductor Pr2Ba4Cu7O15−δ synthesized by citrate pyrolysis technique Reviewed

Kazuma Honnami, Michiaki Matsukawa, Tatsuya Senzaki, Tomoki Toyama, Haruka Taniguchi, Koichi Ui, Takahiko Sasaki, Kohki Takahashi, Makoto Hagiwara

Physica C: Superconductivity and its Applications Vol. 585 page： 1353869 - 1353869 2021.6

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Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier BV

DOI： 10.1016/j.physc.2021.1353869
Nonmonotonic Pressure Dependence of the Lattice Parameter a in the Quasi-one-dimensional Superconductor Pr2Ba4Cu7O15−δ Reviewed

Haruka Taniguchi, Yuya Nakarokkaku, Riku Takahashi, Masatoshi Murakami, Atsuko Nakayama, Michiaki Matsukawa, Satoshi Nakano, Makoto Hagiwara, Takahiko Sasaki

Journal of the Physical Society of Japan Vol. 90 ( 1 ) page： 015001 - 015001 2021.1

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Authorship：Lead author,　Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Physical Society of Japan

In the quasi-one-dimensional superconductor, Pr2Ba4Cu7O15-delta, we found that the lattice parameter, a increased against pressure, starting at 2.0 GPa at approximately 300 K. This result suggests that the two-dimensional inter-conducting-chain interaction along the a axis is most enhanced at approximately 2.0 GPa. To discuss the dimensionality, we also measured the resistance under magnetic fields up to 14 T, because magneto-resistance is induced when a system changes from one-dimensional to two-dimensional.

DOI： 10.7566/jpsj.90.015001

Web of Science
Reversible thermally controlled spontaneous magnetization switching in perovskite-type manganite Reviewed

Hajime Yamamoto, Satoru Sekikawa, Haruka Taniguchi, Michiaki Matsukawa, Kei Shigematsu, Takashi Honda, Kunihiko Yamauchi, Kazutaka Ikeda, Toshiya Otomo, Terutoshi Sakakura, Masaki Azuma, Shigeki Nimori, Yukio Noda, Hiroyuki Kimura

Applied Physics Letters Vol. 117 ( 11 ) page： 112404 - 112404 2020.9

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Publishing type：Research paper (scientific journal) Publisher：AIP Publishing

DOI： 10.1063/5.0017506
Structural, physical and photocatalytic properties of mixed-valence double-perovskite Ba2Pr(Bi,Sb)O6 semiconductor synthesized by citrate pyrolysis technique Reviewed

Arisa Sato, Michaki Matsukawa, Haruka Taniguchi, Shunsuke Tsuji, Kazume Nishidate, Sumio Aisawa, Akiyuki Matsushita, Kun Zhang

Solid State Sciences Vol. 107 page： 106352 - 106352 2020.9

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Publishing type：Research paper (scientific journal) Publisher：Elsevier BV

DOI： 10.1016/j.solidstatesciences.2020.106352
Electronic properties and crystal structures of double-perovskites, Ba2BiIIIBiVO6,Ba2PrBiO6, and Ba2PrSbO6: First-principles study Reviewed

Kazume Nishidate, Achy Adiko, Michiaki Matsukawa, Haruka Taniguchi, Arisa Sato, Akiyuki Matsushita, Satoru Tanibayashi, Masayuki Hasegawa

Materials Research Express Vol. 7 ( 6 ) page： 065505 - 065505 2020.7

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Publishing type：Research paper (scientific journal) Publisher：IOP Publishing

DOI： 10.1088/2053-1591/ab97e5

Other Link： https://iopscience.iop.org/article/10.1088/2053-1591/ab97e5
Glassy dielectric anomaly and negative magneto-capacitance effect in electron-doped Ca1−xSrxMn0.85Sb0.15O3 Reviewed

Haruka Taniguchi, Hidenori Takahashi, Akihiro Terui, Kensuke Sadamitsu, Yuka Sato, Michihiro Ito, Katsuhiko Nonaka, Satoru Kobayashi, Michiaki Matsukawa, Ramanathan Suryanarayanan, Nae Sasaki, Shunpei Yamaguchi, Takao Watanabe

Journal of Applied Physics Vol. 127 ( 18 ) page： 184105 - 184105 2020.5

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Publishing type：Research paper (scientific journal) Publisher：AIP Publishing

DOI： 10.1063/1.5143184
Electron-Doping Effect on the Magnetic-Field-Sensitive Dielectric Anomaly in CaMn<inf>1-x</inf>Sb<inf>x</inf>O<inf>3</inf> Reviewed

Haruka Taniguchi, Hidenori Takahashi, Akihiro Terui, Satoru Kobayashi, Michiaki Matsukawa, Ramanathan Suryanarayanan

IEEE Transactions on Magnetics Vol. 55 ( 2 ) page： 1000104 2019.2

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Publishing type：Research paper (scientific journal) Publisher：Institute of Electrical and Electronics Engineers ({IEEE})

© 1965-2012 IEEE. We measured the temperature dependence of the dielectric constant of the electron-doped manganite CaMn1-xSbxO3 (x = 0.1, 0.12, 0.13, 0.15, and 0.2). The real part exhibits a broad peak and the imaginary part exhibits a shoulder structure at a lower temperature in all the samples, suggesting a gradual growth of clusters which has a dipole ordering. We newly revealed that the temperatures of these dielectric anomalies are enhanced by more than 90 K by the Sb substitution from x = 0.1 to x = 0.2. The result indicates that the carrier concentration should be a decisive parameter for the dipole ordering in CaMn1-xSbxO3. Moreover, a magnetocapacitive effect is observed in all the samples.

DOI： 10.1109/TMAG.2018.2868511

Scopus
Low-energy electron-mode couplings in the surface bands of Sr2RuO4 revealed by laser-based angle-resolved photoemission spectroscopy Reviewed

Shuntaro Akebi, Takeshi Kondo, Mitsuhiro Nakayama, Kenta Kuroda, So Kunisada, Haruka Taniguchi, Yoshiteru Maeno, Shik Shin

Physical Review B Vol. 99 page： 081108(R) 2019.2

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Language：English Publishing type：Research paper (scientific journal)
Magnetic States and Bandgaps of B-Site Substituted Double-Perovskite Ba2Pr(Bi, Sb)O6 Reviewed

H. Taniguchi, M. Matsukawa, K. Onodera, K. Nishidate, A. Matsushita

IEEE Transactions on Magnetics Vol. 55 page： 2400404 2019.1

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Language：English Publishing type：Research paper (scientific journal)
Dielectric anomaly and magnetoelectric effect accompanying a charge ordering in the electron-doped manganite Ca1-xSrxMn0.85Sb0.15O3 Reviewed

Haruka Taniguchi, Hidenori Takahashi, Akihiro Terui, Satoru Kobayashi, Michiaki Matsukawa, Ramanathan Suryanarayanan

Journal of Physics: Conference Series Vol. 969 page： 12094 2018.1

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Language：English Publishing type：Research paper (scientific journal)
Magnetic, thermodynamic and optical properties of Sb-substituted Ba2PrBiO6 double perovskite oxides Reviewed

K. Onodera, T. Kogawa, M. Matsukawa, H. Taniguchi, K. Nishidate, A. Matsushita, M. Shimoda

Journal of Physics: Conference Series Vol. 969 page： 12122 2018.1

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Language：English Publishing type：Research paper (scientific journal)
Vertical Line Nodes in the Superconducting Gap Structure of Sr2RuO4 Reviewed

E. Hassinger, P. Bourgeois-Hope, H. Taniguchi, S. Rene de Cotret, G. Grissonnanche, M. S. Anwar, Y. Maeno, N. Doiron-Leyraud, Louis Taillefer

PHYSICAL REVIEW X Vol. 7 ( 1 ) page： 011032 2017.3

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Language：English Publishing type：Research paper (scientific journal) Publisher：AMER PHYSICAL SOC

There is strong experimental evidence that the superconductor Sr-2 RuO4 has a chiral p-wave order parameter. This symmetry does not require that the associated gap has nodes, yet specific heat, ultrasound, and thermal conductivity measurements indicate the presence of nodes in the superconducting gap structure of Sr2RuO4. Theoretical scenarios have been proposed to account for the existence of deep minima or accidental nodes (minima tuned to zero or below by material parameters) within a p-wave state. Other scenarios propose chiral d-wave and f-wave states, with horizontal and vertical line nodes, respectively. To elucidate the nodal structure of the gap, it is essential to know whether the lines of nodes (or minima) are vertical (parallel to the tetragonal c axis) or horizontal (perpendicular to the c axis). Here, we report thermal conductivity measurements on single crystals of Sr2RuO4 down to 50 mK for currents parallel and perpendicular to the c axis. We find that there is substantial quasiparticle transport in the T =0 limit for both current directions. A magnetic field H immediately excites quasiparticles with velocities both in the basal plane and in the c direction. Our data down to T-c/30 and down to H-c2 /100 show no evidence that the nodes are in fact deep minima. Relative to the normal state, the thermal conductivity of the superconducting state is found to be very similar for the two current directions, from H = 0 to H =H-c2. These findings show that the gap structure of Sr 2 RuO 4 consists of vertical line nodes. This rules out a chiral d-wave state. Given that the c-axis dispersion (warping) of the Fermi surface in Sr2RuO4 varies strongly from sheet to sheet, the small a -c anisotropy suggests that the line nodes are present on all three sheets of the Fermi surface. If imposed by symmetry, vertical line nodes would be inconsistent with a p-wave order parameter for Sr2RuO4. To reconcile the gap structure revealed by our data with a p-wave state, a mechanism must be found that produces accidental line nodes in Sr2RuO4.

DOI： 10.1103/PhysRevX.7.011032

Web of Science
Dynamics of the lattice and spins in the phase-separated manganite (Eu1-xGdx)0.6Sr0.4MnO3 Reviewed

Vol. 432 page： 548 2017.2

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Language：English
Orbital-Dependent Band Narrowing Revealed in an Extremely Correlated Hund's Metal Emerging on the Topmost Layer of Sr2RuO4 Reviewed

Takeshi Kondo, M. Ochi, M. Nakayama, H. Taniguchi, S. Akebi, K. Kuroda, M. Arita, S. Sakai, H. Namatame, M. Taniguchi, Y. Maeno, R. Arita, S. Shin

PHYSICAL REVIEW LETTERS Vol. 117 ( 24 ) page： 247001 2016.12

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Language：English Publishing type：Research paper (scientific journal) Publisher：AMER PHYSICAL SOC

We use a surface-selective angle-resolved photoemission spectroscopy and unveil the electronic nature on the topmost layer of Sr2RuO4 crystal, consisting of slightly rotated RuO6 octahedrons. The. band derived from the 4d(xy) orbital is found to be about three times narrower than that for the bulk. This strongly contrasts with a subtle variation seen in the a and a bands derived from the one-dimensional 4d(xz/yz). This anomaly is reproduced by the dynamical mean-field theory calculations, introducing not only the onsite Hubbard interaction but also the significant Hund's coupling. We detect a coherence-to-incoherence crossover theoretically predicted for Hund's metals, which has been recognized only recently. The crossover temperature in the surface is about half that of the bulk, indicating that the naturally generated monolayer of reconstructed Sr2RuO4 is extremely correlated and well isolated from the underlying crystal.

DOI： 10.1103/PhysRevLett.117.247001

Web of Science
Effect of Pressure on Magneto-Transport Properties in the Superconducting and Normal Phases of the Metallic Double Chain Compound Pr2Ba4Cu7O15−d Reviewed

Kuwabara Masayoshi, Matsukawa Michiaki, Sugawara Keisuke, Taniguchi Haruka, Matsushita Akiyuki, Hagiwara Makoto, Sano Kazuhiro, Ōno Yoshiaki, Sasaki Takahiko

Journal of the Physical Society of Japan Vol. 85 ( 12 ) page： 124704 - 1-6 2016.11

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Language：English Publisher：The Physical Society of Japan

To examine the electronic phase diagram of superconducting CuO double chains, we report the effect of external pressure on the magneto-transport properties in superconducting and non-superconducting polycrystalline samples of Pr2Ba4Cu7O15−δat low temperatures (1.8–40 K) under various magnetic fields (up to 14 T). In the as-sintered non-superconducting sample, the magneto-resistance (MR) follows a power law of <italic>H</italic>3/2at low temperatures, which is in no agreement with the <italic>H</italic>2dependence of MR in the PrBa2Cu4O8system. The negative pressure dependence of the superconducting phase is qualitatively consistent with a theoretical prediction on the basis of the Tomonaga–Luttinger liquid theory. The 48-h-reduced superconducting sample at ambient pressure exhibits no clear increase in MR for <italic>T</italic>> <italic>T</italic>c,on= 26.5 K. In contrast, with the application of pressure to the superconducting sample, the MR effects reappear and are also well fitted by <italic>H</italic>3/2. The model of slightly warped Fermi surfaces explains not only the MR effect of the non-superconducting sample, but is also related to the reasons for the pressure-induced MR phenomena of the superconducting sample.

DOI： 10.7566/JPSJ.85.124704

CiNii Books
Slow thermodynamics in the phase separated state of the bilayered manganite (La0.4Pr0.6)(1.2)Sr1.8Mn2O7 Reviewed

Haruka Taniguchi, Yuma Nakamura, Takahisa Konno, Michiaki Matsukawa, Ramanathaan Suryanarayanan

Physics Procedia Vol. 75 page： 468 - 474 2016

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Language：English Publishing type：Research paper (scientific journal) Publisher：ELSEVIER SCIENCE BV

Bilayered perovskite (La0.4Pr0.6)(1.2)Sr1.8Mn2O7 exhibits a field-induced paramagnetic-insulator to ferromagnetic-metal transition, and a phase-separated state is realized after the field is switched off. In order to clarify the thermodynamic properties of the phase-separated state which is a common feature in many manganites, we performed specific heat measurement with field along the magnetization easy axis. We have revealed that the remanent specifc heat might exhibit a stretched exponential decay and the relaxation time is remarkably long. These results indicate the importance of magnetic frustration originating from the competition between double-exchange interaction and superexchange interaction.

DOI： 10.1016/j.phpro.2015.12.058

Web of Science
Thermodynamic Properties of Superconducting and Non-Superconducting Pr2Ba4Cu7O15 Compounds with Metallic Double Chains Reviewed

Takahisa Konno, Michiaki Matsukawa, Keisuke Sugawara, Haruka Taniguchi, Junichi Echigoya, Akiyuki Matsushita, Makoto Hagiwara, Kazuhiro Sano, Yoshiaki Ohno, Yuh Yamada, Takahiko Sasaki, Yuichiro Hayasaka

Physica C Vol. 521 page： 13 - 17 2015.12

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Pr2Ba4Cu7O15は還元処理によって超伝導を示し、CuO二重鎖が1次元的な超伝導を示す点においてCuO2面上2次元超伝導を示す他の銅酸化物とは異質であるとして注目を集めている。我々は本物質の熱力学特性を明らかにすべく、還元前の非超伝導試料および還元後の超伝導試料について比熱測定を行い、前者では反強磁性転移に由来する型の異常を、後者では還元で生じたPr3+の結晶場効果に由来するショットキー型の異常を見出した。
Higher-Tc superconducting phase in Sr2RuO4 induced by in-plane uniaxial pressure Reviewed

Haruka Taniguchi, Keigo Nishimura, Swee K. Goh, Shingo Yonezawa, Yoshiteru Maeno

Journal of the Physical Society of Japan Vol. 84 ( 1 ) page： 014707-1 - 014707-6 2014.12

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Language：English Publishing type：Research paper (scientific journal) Publisher：The Physical Society of Japan

超伝導秩序変数の軌道部分が2成分から成ると考えられているSr2RuO4 について、面内の結晶対称性を4回対称から2回対称へと低下させる面内一軸性圧力のもとで交流磁化率測定を行った。超伝導転移のオンセット温度が約1.5 Kから3.3 Kにまで上昇することを明らかにした。この結果は結晶対称性の低下に伴う軌道縮退の解消によって軌道1成分の新奇超伝導相が出現したためと理解できる。さらに、圧力方向によって3-K超伝導の出やすさが異なることを見出し、その結果をRu-Oボンド長やフェルミ面における変形の違いに基づき解釈した。

DOI： 10.7566/JPSJ.84.014707
Magnetic and thermodynamic properties of the lightly electron-doped manganite compound (Ca,Sr)Mn0.95Sb0.05O3 Reviewed

Takahiro Fujiwara, Michiaki Matsukawa, Takahiro Aoyagi, Satoru Kobayashi, Haruka Taniguchi, Shigeki Nimori, Ramanathan Suryanarayanan

Journal of Magnetism and Magnetic Materials Vol. 378 page： 451 - 456 2014.11

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Language：English Publishing type：Research paper (scientific journal)

電子ドープ型マンガン酸化物CaMn0.95Sb0.05O3の磁化反転現象への化学圧力効果を解明すべく、Caの一部を等価数のSrで置換して直流磁化、交流磁化率および比熱を測定した。各測定からそれぞれ、Sr濃度15%以下で磁化反転が起きること、磁化反転を示す試料には磁気フラストレーションが存在すること、磁化反転状態は短距離秩序であることを明らかにした。
Anisotropic uniaxial pressure response of the Mott insulator Ca2RuO4 Reviewed

Haruka Taniguchi, Keigo Nishimura, Ryo Ishikawa, Shingo Yonezawa, Swee K. Goh, Fumihiko Nakamura, Yoshiteru Maeno

PHYSICAL REVIEW B Vol. 88 ( 20 ) page： 205111 2013.11

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Language：English Publishing type：Research paper (scientific journal) Publisher：AMER PHYSICAL SOC

We have investigated the in-plane uniaxial pressure effect on the antiferromagnetic Mott insulator Ca2RuO4 from resistivity and magnetization measurements. We succeeded in inducing the ferromagnetic metallic phase at lower critical pressure than by hydrostatic pressure, indicating that the flattening distortion of the RuO6 octahedra is more easily released under in-plane uniaxial pressure. We also found a striking in-plane anisotropy in the pressure responses of various magnetic phases: although the magnetization increases monotonically with pressure diagonal to the orthorhombic principal axes, the magnetization exhibits peculiar dependence on pressure along the in-plane orthorhombic principal axes. This peculiar dependence can be explained by a qualitative difference between the uniaxial pressure effects along the orthorhombic a and b axes, as well as by the presence of twin domain structures.

DOI： 10.1103/PhysRevB.88.205111

Web of Science
Control of the electronic states of Ca2RuO4 by uniaxial pressure Reviewed

Ryo Ishikawa, Haruka Taniguchi, Swee Kuan Goh, Shingo Yonezawa, Fumihiko Nakamura, Yoshiteru Maeno

Journal of Physics: Conference Series Vol. 400 ( 2 ) page： 022036 2012

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Language：English Publishing type：Research paper (scientific journal) Publisher：IOP PUBLISHING LTD

We study the uniaxial pressure effect on the Mott insulator Ca2RuO4. It is known that the crystal structure is a crucial parameter to determine the electronic states in this system. We revealed that a metal-insulator (M-I) transition is induced by the uniaxial pressure along the ab-plane at room temperature and the metallic state is sustained under cooling down to 5 K. In contrast, such a transition to a metallic state is not observed by the uniaxial pressure along the c-axis. Our experimental results suggest that the elongation of the RuO6 octahedra along the c-axis can trigger the M-I transition.

DOI： 10.1088/1742-6596/400/2/022036

Web of Science
Field-temperature phase diagram of superconductivity in Sr2RuO4-Ru under out-of-plane uniaxial pressure Reviewed

H. Taniguchi, S. Kittaka, S. Yonezawa, H. Yaguchi, Y. Maeno

INTERNATIONAL CONFERENCE ON STRONGLY CORRELATED ELECTRON SYSTEMS (SCES 2011) Vol. 391 ( 1 ) page： 012108 2012

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Language：English Publishing type：Research paper (scientific journal) Publisher：IOP PUBLISHING LTD

One of the interesting issues on the spin-triplet superconductor Sr2RuO4 (T-c = 1.5 K) is the origin of the T-c enhancement up to about 3 K in the eutectic system Sr2RuO4-Ru. We have recently revealed a striking fact that T-c of pure Sr2RuO4 is also enhanced up to 3.2 K by uniaxial pressure along the c axis (P-parallel to c). When P-parallel to c is applied to Sr2RuO4-Ru, there is a crossover at P-parallel to c* similar to 0.4 GPa from behavior attributable to interfacial superconductivity (SC) to behavior similar to that in pure Sr2RuO4 under P-parallel to c. We focus on the field-temperature phase diagrams of Sr2RuO4-Ru above and below P-parallel to c*. We revealed that the H-T curves of Sr2RuO4-Ru both above and below P-parallel to c* are concave-up. This fact suggests that the P-parallel to c-originated SC above P-parallel to c*c as well as the interfacial SC below P-parallel to c*c are granular-like. We also found that the H-T curves of these SCs do not scale with T-c's, which is possibly related to a difference in the spatial distribution of superconducting regions.

DOI： 10.1088/1742-6596/391/1/012108

Web of Science
Higher-Tc superconducting phase in Sr2RuO4 induced by uniaxial pressure Reviewed

Shunichiro Kittaka, Haruka Taniguchi, Shingo Yonezawa, Hiroshi Yaguchi, Yoshiteru Maeno

PHYSICAL REVIEW B Vol. 81 ( 18 ) page： 180510 2010.5

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We have investigated uniaxial pressure effect on superconductivity of pure Sr2RuO4, whose intrinsic superconducting transition temperature T-c is 1.5 K. It is revealed that a very low uniaxial pressure along the c axis, only 0.2 GPa, induces superconductivity with the onset T-c above 3 K. The present results indicate that pure Sr2RuO4 has two superconducting phases with T-c=1.5 K and with varying T-c up to 3.2 K. The latter phase exhibits unusual features and is attributable to anisotropic crystal distortions beyond the elastic limit.

DOI： 10.1103/PhysRevB.81.180510

Web of Science

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Books 1

Recent Perspectives in Pyrolysis Research

T. Senzaki, M. Matsukawa, T. Yonai, H. Taniguchi, A. Matsushita, T. Sasaki, M. Hagiwara（ Role： Contributor , Chapter "Functional materials synthesis and physical properties"）

IntechOpen 2021.10

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MISC 23

Magnetotransport properties of heavily underdoped Bi-2223 single crystals

渡辺孝夫, 佐々木菜絵, 山口隼平, 小杉健太, 足立伸太郎, 掛谷一弘, 藤井武則, 谷口晴香, 松川倫明

日本物理学会講演概要集(CD-ROM) Vol. 76 ( 2 ) 2021

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J-GLOBAL
金属2重鎖系Pr2Ba4Cu7O15-dのホール効果の圧力依存性

熊谷凌, 本波和真, 松川倫明, 谷口晴香, 萩原亮, 佐々木孝彦

東北大学金属材料研究所強磁場超伝導材料研究センター平成30年度年次報告書 2019.4

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Language：Japanese Publishing type：Meeting report Publisher：東北大学金属材料研究所
Pressure effect on the superconductivity and crystal structure of the metallic double chain system Pr2Ba4Cu7O15-d

Taniguchi H., Ono Y., Sano K., Takahashi R., Murakami M., Kumagai R., Nakayama A., Matsukawa M., Nakano S., Hagiwara M., Sasaki T.

Meeting Abstracts of the Physical Society of Japan Vol. 73 ( 0 ) page： 1699 - 1699 2018

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Language：Japanese Publisher：The Physical Society of Japan

DOI： 10.11316/jpsgaiyo.73.2.0_1699
Magnetic field effect on the dielectric properties of charge ordered manganite Ca1-xSrxMn1-ySbyO3

Taniguchi H., Takahashi H., Kobayashi S., Matsukawa M., Suryanarayanan R.

Meeting Abstracts of the Physical Society of Japan Vol. 71 page： 774 - 774 2016

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Language：Japanese Publisher：The Physical Society of Japan

DOI： 10.11316/jpsgaiyo.71.2.0_774
Sr substitution effect and the electronic phase diagram in CaMn0.8Ru0.2O3

Kurauchi T., Taniguchi H., Kobayashi S., Matsukawa M.

Meeting Abstracts of the Physical Society of Japan Vol. 71 page： 1946 - 1946 2016

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DOI： 10.11316/jpsgaiyo.71.2.0_1946
Pressure dependence of the magnetoresistance of Pr247 superconductor with metallic double chain

Kuwabara M., Nakarrokaku K., Taniguchi H., Kobayashi S., Matsukawa M., Hagiwara M., Sasaki T., Matsushita A.

Meeting Abstracts of the Physical Society of Japan Vol. 71 page： 1923 - 1923 2016

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DOI： 10.11316/jpsgaiyo.71.2.0_1923
Coherent-incoherent crossover on Ruthenates studied by ARPES

Nakayama Mitsuhiro, Kondo Takeshi, Taniguchi Haruka, Yoshida Yoshiyuki, Takagi Hidenori, Maeno Yoshiteru, Shin Shik

Meeting Abstracts of the Physical Society of Japan Vol. 71 page： 1861 - 1861 2016

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Language：Japanese Publisher：The Physical Society of Japan

DOI： 10.11316/jpsgaiyo.71.2.0_1861
B-site substitution effect and magnetic properties in Ba2PrBiO6 double perovskite oxides

Kogawa T., Matsukawa M., Taniguchi H., Matsushita A.

Meeting Abstracts of the Physical Society of Japan Vol. 71 page： 2248 - 2248 2016

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Language：Japanese Publisher：The Physical Society of Japan

DOI： 10.11316/jpsgaiyo.71.2.0_2248
金属二重鎖系Pr2Ba4Cu7O15-δの磁気抵抗の圧力効果

2015.4

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24aPS-101 Thermal transport properties of electron-doped manganite with the magnetization reversal

Takahashi H., Aoyagi T., Taniguchi H., Kobayashi S., Matsukawa M., Suryanarayanan R.

Meeting Abstracts of the Physical Society of Japan Vol. 70 page： 2451 - 2451 2015

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Language：Japanese Publisher：The Physical Society of Japan (JPS)

DOI： 10.11316/jpsgaiyo.70.1.0_2451

CiNii Books
24aPS-97 Specific heat in magnetic field and its relaxation phenomena of the single crystal of the layered manganite (La_<0.4>Pr_<0.6>)_<1.2>Sr_<1.8>Mn_2O_7

Nakamura Y., Takahashi H., Konno T., Taniguchi H., Matsukawa M., Suryanarayanan R.

Meeting Abstracts of the Physical Society of Japan Vol. 70 page： 2447 - 2447 2015

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DOI： 10.11316/jpsgaiyo.70.1.0_2447

CiNii Books
24aPS-45 Pressure effect on magnetization and transport properties of Pr_2Ba_4Cu_7O_<15-δ> superconductor with metallic double chain

Sugawara K., Konno T., Taniguchi H., Kobayashi S., Matsukawa M., Hagiwara M., Sasaki T., Matsushita A.

Meeting Abstracts of the Physical Society of Japan Vol. 70 page： 2397 - 2397 2015

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Language：Japanese Publisher：The Physical Society of Japan (JPS)

DOI： 10.11316/jpsgaiyo.70.1.0_2397

CiNii Books
10aBJ-6 Anisotropic uniaxial pressure response of the superconductivity of Sr_2RuO_4

Taniguchi H., Nishimura K., Goh Swee K., Yonezawa S., Maeno Y.

Meeting abstracts of the Physical Society of Japan Vol. 69 ( 2 ) page： 457 - 457 2014.8

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CiNii Books
9aPS-83 Transport properties under magnetic field and electronic phase diagram in Pr247 superconductor with metallic double chain

Konno T., Sugawara K., Taniguchi H., Matsukawa M., Hagiwara M., Sano K., Ono Y., Sasaki T., Matsushita A.

Meeting abstracts of the Physical Society of Japan Vol. 69 ( 2 ) page： 422 - 422 2014.8

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9aPS-31 Thermal transport property of the electron-doped manganite with the magnetization reversal

Aoyagi T., Takahashi H., Taniguchi H., Kobayashi S., Matsukawa M., Nimori S., Suryanarayanan R.

Meeting abstracts of the Physical Society of Japan Vol. 69 ( 2 ) page： 410 - 410 2014.8

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CiNii Books
Metallic phase of the Mott insulator Ca_2RuO_4 induced by uniaxial pressure : Magnetic properties and in-plane anisotropy

Taniguchi H., Nishimura K., Yonezawa S., Nakamura F., Kondo R., Nogami Y., Maeno Y.

Meeting abstracts of the Physical Society of Japan Vol. 68 ( 2 ) page： 589 - 589 2013.8

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CiNii Books
27pXH-8 In-plane uniaxial pressure effect on the Mott insulator Ca_2RuO_4

Taniguchi H., Nishimura K., Nakamura Taketomo, Goh Swee K., Yonezawa S., Nakamura F., Maeno Y.

Meeting abstracts of the Physical Society of Japan Vol. 68 ( 1 ) page： 653 - 653 2013.3

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CiNii Books
29aPS-151 Development of four-terminal resistivity measurement technique under uniaxial pressure for ruthenium oxides

Nishimura K., Taniguchi H., Nakamura Taketomo, Goh Swee K., Yonezawa S., Nakamura F., Maeno Y.

Meeting abstracts of the Physical Society of Japan Vol. 68 ( 1 ) page： 718 - 718 2013.3

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CiNii Books
27pYF-4 Ground states of Sr_2RuO_4 and Ca_2RuO_ controlled by uniaxial pressure

Taniguchi H., Ishikawa R., Goh S. K., Yonezawa S., Nakamura F., Maeno Y.

Meeting abstracts of the Physical Society of Japan Vol. 67 ( 1 ) page： 704 - 704 2012.3

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CiNii Books
25aEF-2 Uniaxial-pressure induced ferromagnetic metallic phase in the Mott insulator Ca_2RuO_4

Taniguchi H., Ishikawa R., Goh S. K., Yonezawa S., Nakamura F., Maeno Y.

Meeting abstracts of the Physical Society of Japan Vol. 66 ( 1 ) page： 526 - 526 2011.3

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CiNii Books
25pWB-2 Metal-insulator transition in Ca_2RuO_4 induced by uniaxial pressure

Taniguchi H., Ishikawa R., Goh S. K., Yonezawa S., Nakamura F., Maeno Y.

Meeting abstracts of the Physical Society of Japan Vol. 65 ( 2 ) page： 596 - 596 2010.8

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CiNii Books
20pGE-11 Enhancement of Superconducting Onset Temperature in Sr_2RuO_4 by Uniaxial Pressure

Taniguchi H., Kittaka S., Yonezawa S., Maeno Y.

Meeting abstracts of the Physical Society of Japan Vol. 65 ( 1 ) page： 558 - 558 2010.3

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CiNii Books
25aRK-12 Uniaxial Pressure Effect on Superconducting Transition Temperature of Sr_2RuO_4

Taniguchi H., Kittaka S., Yonezawa S., Maeno Y.

Meeting abstracts of the Physical Society of Japan Vol. 64 ( 2 ) page： 410 - 410 2009.8

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CiNii Books

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Presentations 123

擬一次元構造を持つ遷移金属カルコゲナイドの単結晶育成と物性評価

矢野力三, 高橋智紀, 奥田大貴, 谷口晴香, 笹川崇男A, 柏谷聡

日本物理学会第78回年次大会 2023.9.19 日本物理学会

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Event date： 2023.9

Language：Japanese Presentation type：Oral presentation (general)

Venue：東北大学
トポロジカル絶縁体FeドープBiSbTe2Seの磁場中輸送特性と表面電子状態

反田剛, 矢野力三, ○谷口晴香, 林時温, 中河西翔, 廣瀬陽代A, 笹川崇男A, 柏谷聡

日本物理学会第78回年次大会 2023.9.18 日本物理学会

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Event date： 2023.9

Language：Japanese Presentation type：Oral presentation (general)

Venue：東北大学
ダブルペロブスカイト表面における水のダイナミクス

西館数芽, 佐藤創, 松川倫明, 谷口晴香, 松下明行, 長谷川正之

日本物理学会2023年春季大会 2023.3.22 日本物理学会

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Event date： 2023.3

Language：Japanese Presentation type：Oral presentation (general)

Venue：オンライン
ダブルペロブスカイト酸化物Ba2Ce(Bi,Sb)O6の合成と物性評価

荒木田南実, Dayal Chandra Roy, 米内孝徳, 松川倫明, 酒匂花子, 秦一斗, 谷口晴香, 松下明行, Zhang Kun

日本物理学会2023年春季大会 2023.3.24 日本物理学会

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Event date： 2023.3

Language：Japanese Presentation type：Poster presentation

Venue：オンライン
放電プラズマ焼結法によるLa1-xYxMO3 (M = Mn，Fe)の合成と物性評価

川原田尚久, 谷口晴香, 小林翔真, 上野健斗, 西館数芽, 松川倫明

日本物理学会2023年春季大会 2023.3.24 日本物理学会

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Event date： 2023.3

Language：Japanese Presentation type：Poster presentation

Venue：オンライン
多結晶CaMn0.85Sb0.15O3の密度比向上と誘電特性の評価 International coauthorship

栗橋仁志, 谷口晴香, 港川大成, 上野智也, 小林悟, 松川倫明, R Suryanarayanan

日本物理学会2023年春季大会 2023.3.24 日本物理学会

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Event date： 2023.3

Language：Japanese Presentation type：Poster presentation

Venue：オンライン
Ce置換PrBa2Cu4O8系銅酸化物の合成と物性評価

新沼広大, 寺村壮玄, 羽川征秀, 松川倫明, 谷口晴香, 佐々木孝彦

日本物理学会2023年春季大会 2023.3.24 日本物理学会

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Event date： 2023.3

Language：Japanese Presentation type：Poster presentation

Venue：オンライン
ダブルペロブスカイトBa2PrBiO6の仕事関数とバンドギャップ：第一原理計算

西館数芽, 佐藤創, 松川倫明, 谷口晴香, 松下明行A, 長谷川正之

日本物理学会2022年秋季大会 2022.9.14 日本物理学会

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Event date： 2022.9

Language：Japanese Presentation type：Oral presentation (general)

Venue：東京工業大学
ペロブスカイト酸化物Ba(Bi,Sb)O3の合成と物性評価 International coauthorship

米内孝徳, Dayal Chandra Roy, 荒木田南実, 松川倫明, 谷口晴香, 西館数芽, 松下明行A, Zhang KunA

日本物理学会2022年秋季大会 2022.9.14 日本物理学会

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Event date： 2022.9

Language：Japanese Presentation type：Poster presentation

Venue：東京工業大学
Ca置換PrBa2Cu4O8系銅酸化物の合成と磁場中輸送特性

寺村壮玄, 新沼広大, 羽川征秀, 松川倫明, 谷口晴香, 萩原亮, 佐々木孝彦

日本物理学会2022年秋季大会 2022.9.14 日本物理学会

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Event date： 2022.9

Language：Japanese Presentation type：Poster presentation

Venue：東京工業大学
電子ドープ系CaMn0.85Sb0.15O3のゾルゲル法による純良化と誘電特性の評価 International coauthorship

港川大成, 谷口晴香, 栗橋仁志, 小林悟, 松川倫明, R.Suryanarayanan

日本物理学会2022年秋季大会 2022.9.14 日本物理学会

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Event date： 2022.9

Language：Japanese Presentation type：Poster presentation

Venue：東京工業大学
放電プラズマ焼結法によるダブルペロブスカイト酸化物の合成

谷口晴香, 川原田尚久, 西館数芽, 松川倫明

日本物理学会2022年秋季大会 2022.9.14 日本物理学会

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Event date： 2022.9

Language：Japanese Presentation type：Poster presentation

Venue：東京工業大学
ダブルペロブスカイトBa2PrBiO6の第一原理分子動力学計算

佐藤創, 松川倫明, 谷口晴香, 松下明行A, 長谷川正之, 西館数芽

日本物理学会2022年秋季大会 2022.9.12 日本物理学会

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Event date： 2022.9

Language：Japanese Presentation type：Poster presentation

Venue：東京工業大学
Pr2Ba4Cu7O15銅酸化物の高Tc試料の合成と磁場中輸送特性

寺村壮玄, 千崎達也, 松川倫明, 谷口晴香, 萩原亮, 佐々木孝彦

日本物理学会第77回年次大会

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Event date： 2022.3

Language：Japanese Presentation type：Poster presentation
電子ドープ型マンガン酸化物CaMn0.85Sb0.15O3のポーラロン秩序への物理圧力効果

港川大成, 谷口晴香, 遠山友貴, 小林悟, 松川倫明, R SuryanarayananA

日本物理学会第77回年次大会

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Event date： 2022.3

Language：Japanese Presentation type：Poster presentation
アンダードープBi-2223単結晶における負の電気抵抗の観測

渡辺孝夫, 山口隼平, 小杉健太, 佐々木菜絵, 足立伸太郎A, 藤井武則B, 谷口晴香C, 松川倫明C, 巴山顕D, 掛谷一弘D

日本物理学会第77回年次大会

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Event date： 2022.3

Language：Japanese Presentation type：Oral presentation (general)
ダブルペロブスカイト酸化物Ba2Tb(Bi,Sb)O6の機械学習による探索と光触媒特性の最適化

米内孝徳, Dayal Chandra Roy, 辻峻介, 松川倫明, 谷口晴香, 松下明行A, Zhang KunA

日本物理学会第77回年次大会

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Event date： 2022.3

Language：Japanese Presentation type：Poster presentation
ダブルペロブスカイトBa2PrBiO6表面の電子状態：第一原理計算

西館数芽, 松川倫明, 谷口晴香, 松下明行A, 長谷川正之

日本物理学会第77回年次大会

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Event date： 2022.3

Language：Japanese Presentation type：Oral presentation (general)
ゾルゲル法で合成したダブルペロブスカイトLaYFe2O6の誘電特性と光触媒活性

谷口晴香, 遠山友貴, 港川大成, 松川倫明

日本物理学会第77回年次大会

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Event date： 2022.3

Language：Japanese Presentation type：Poster presentation
AサイトダブルペロブスカイトLaYB2O6の合成と物性評価

遠山友貴, 谷口晴香, 港川大成, 日景大雅, 宮脇一綺, 松川倫明

日本物理学会2021年秋季大会

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Event date： 2021.9

Language：Japanese Presentation type：Poster presentation
citrate-pyrolysis前駆体法を用いた単一相 R247系(R:Y or Pr)の合成手法

萩原亮, 戸波勇人, 藤井勇輔, 出口博之A, 久田旭彦B, 小山晋之B, 谷口晴香C, 松川倫明C

日本物理学会2021年秋季大会

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Event date： 2021.9

Language：Japanese Presentation type：Poster presentation
Ca置換PrBa2Cu4O8系銅酸化物の相図と熱輸送特性

千崎達也, 寺村壮玄, 松川倫明, 谷口晴香, 萩原亮A, 佐々木孝彦B

日本物理学会2021年秋季大会

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Event date： 2021.9

Language：Japanese Presentation type：Poster presentation
ダブルペロブスカイトBa2PrBiO6表面における水分子の反応性：第一原理計算

西館数芽, 松川倫明, 谷口晴香, 松下明行A, 長谷川正之

日本物理学会2021年秋季大会

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Event date： 2021.9

Language：Japanese Presentation type：Oral presentation (general)
超アンダードープBi-2223単結晶の作製と磁場中輸送特性

渡辺孝夫, 佐々木菜絵, 山口隼平, 小杉健太, 足立伸太郎A, 掛谷一弘B, 藤井武則C, 谷口晴香D, 松川倫明D

日本物理学会2021年秋季大会

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Event date： 2021.9

Language：Japanese Presentation type：Oral presentation (general)
ダブルペロブスカイト酸化物Ba2Tb(Bi,Sb)O6の相図作成と価数状態

辻峻介, 米内孝徳, 松川倫明, 谷口晴香, 會澤純雄, 松下明行A, Zhang KunA

日本物理学会2021年秋季大会

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Event date： 2021.9

Language：Japanese Presentation type：Poster presentation
金属二重鎖超伝導体Pr2Ba4Cu7O15-dにおける鎖間距離の非単調な圧力依存性と磁気抵抗効果

谷口晴香, 中六角有矢, 高橋陸, 村上真俊, 中山敦子, 松川倫明, 中野智志A, 萩原亮B, 佐々木孝彦

日本物理学会2021年秋季大会

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Event date： 2021.9

Language：Japanese Presentation type：Oral presentation (general)
電荷整列マンガン酸化物CaMn0.85Sb0.15O3多結晶の誘電異常とサイズ効果

定光健介, 谷口晴香, 伊藤達博, 小林悟, 松川倫明, R Suryanarayanan

日本物理学会2019年秋季大会 2019.9.10

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電荷整列マンガン酸化物CaMn1-xSbxO3の電気磁気効果に対するSb置換効果

2017.9.21

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電荷整列型マルチフェロイクスCa1-xSrxMn1-ySbyO3の電荷-スピン結合に対するSb置換効果

2017.3.17

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電荷整列系Ca1-xSrxMn0.8Sb0.2O3の熱物性

谷口晴香, 佐藤景介, 照井晶大, 松川倫明

日本物理学会第74回年次大会 2019.3.14

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電荷整列系CaMn0.85Sb0.15O3の誘電異常への化学圧力効果

谷口晴香, 定光健介, 小林悟, 松川倫明, R Suryanarayanan

日本物理学会第75回年次大会 2020.3.16

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電荷整列系CaMn0.85Sb0.15O3の誘電異常への物理圧力効果

定光健介, 谷口晴香, 遠山友貴, 吉田一智, 小林悟, 松川倫明, R Suryanarayanan

日本物理学会第75回年次大会 2020.3.16

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電荷整列系CaMn0.88Sb0.12O3単結晶の誘電特性と磁気特性

谷口晴香, 定光健介, 佐藤優香, 伊藤達博, 小林悟, 松川倫明, 山口隼平, 佐々木菜絵, 渡辺孝夫, R Suryanarayanan

日本物理学会2019年秋季大会 2019.9.10

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二層型マンガン酸化物(La0.4Pr0.6)1.2Sr1.8Mn2O7の残留磁気比熱の磁場中緩和効果

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電荷整列マンガン酸化物Ca1-xSrxMn1-ySbyO3の誘電特性における磁場効果

2016.9.13

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TeアニールFeTe1-xSex単結晶の輸送特性：Se濃度依存性

上薗優, 谷口晴香, 中西良樹, 吉澤正人, 木村尚次郎, 渡辺孝夫

日本物理学会第75回年次大会 2020.3.16

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Sr2RuO4の超伝導転移温度の一軸性圧力効果

2009.9.25

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Sr2RuO4の超伝導オンセット温度の一軸性圧力による上昇

2010.3.20

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Sr2RuO4の超伝導への一軸性圧力効果の異方性

2014.9.7

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Slow thermodynamics in the phase separated state of the bilayered manganite (La0.4Pr0.6)1.2Sr1.8Mn2O7 International conference

H. Taniguchi, Y. Nakamura, H. Takahashi, T. Konno, M. Matsukawa, R. Suryanarayanan

20th International Conference on Magnetism 2015.7.5

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Pressure enhanced superconducting phase of the metallic double chain compound Pr2Ba4Cu7O15-x International conference

R. Kumagai, H. Taniguchi, M. Matsukawa, M. Hagiwara, T. Sasaki

International Conference on Magnetism 2018 2018.7.15

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Pr2Ba4Cu7O15超伝導良質試料の磁場中電気抵抗と熱的特性

千崎達也, 本波和真, 松川倫明, 谷口晴香, 萩原亮, 佐々木孝彦

日本物理学会第76回年次大会(2021年) 2021.3.12

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Pr2Ba4Cu7O15超伝導体の磁場配向膜の作製と良質試料のホール係数評価

本波和真, 松川倫明, 谷口晴香, 萩原亮, 佐々木孝彦, 高橋弘紀

日本物理学会第75回年次大会 2020.3.16

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Pr2Ba4Cu7O15超伝導体の合成とホール係数の圧力効果

本波和真, 松川倫明, 谷口晴香, 萩原亮, 佐々木孝彦

日本物理学会2019年秋季大会 2019.9.10

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PbドープしたBi-2212単結晶のホール係数

原田圭市, 寺本祐基, 山口隼平, 伊高健治, 藤井武則, 谷口晴香, 松川倫明, 渡辺孝夫

日本物理学会第75回年次大会 2020.3.16

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PbドープBi-2212単結晶におけるコヒーレント転移の観測

原田圭市, 寺本祐基, 山口隼平, 伊高健治, 藤井武則, 谷口晴香, 松川倫明, 石川孟, 金道浩一, 渡辺孝夫

日本物理学会 2020年秋季大会 2020.9.8

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PbドープBi-2212で観測された二つの擬ギャップについて

原田圭市, 松田慎太郎, 寺本祐基, 臼井友洋, 伊高健治, 藤井武則, 谷口晴香, 松川倫明, 石川孟, 金道浩一, 渡辺孝夫, 野地尚

日本物理学会第76回年次大会(2021年) 2021.3.12

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Magnetic-field-sensitive dielectric anomaly of the electron-doped manganite CaMn1-xSbxO3 International conference

H. Taniguchi, H. Takahashi, A. Terui, S. Kobayashi, M. Matsukawa, R. Suryanarayanan

International Conference on Magnetism 2018 2018.7.15

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Magnetic-field effect on the dielectric properties of the electron doped manganite Ca1-xSrxMn1-ySbyO3 International conference

H. Taniguchi, H. Takahashi, S. Kobayashi, M. Matsukawa, R. Suryanarayanan

9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids 2016.8.8

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Magnetic, thermodynamic and optical properties of Sb-substituted Ba2PrBiO6 double perovskite oxides International conference

K. Onodera, T. Kogawa, M. Matsukawa, H. Taniguchi, K. Nishidate, A. Matsushita, M. Shimoda

28th International Conference on Low Temperature Physics 2017.8.9

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Magnetic states and band gaps of Ba2Pr(Bi,Sb)O6 double perovskite oxide compounds International conference

K. Onodera, H. Taniguchi, M. Matsukawa, K. Nishidate, A. Matsushita

International Conference on Magnetism 2018 2018.7.15

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Dielectric anomaly and magnetoelectric effect in the charge-ordered manganite Ca1-xSrxMn0.85Sb0.15O3 International conference

H. Taniguchi, H. Takahashi, A. Terui, S. Kobayashi, M. Matsukawa, R. Suryanarayanan

28th International Conference on Low Temperature Physics 2017.8.9

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Control of the electronic state of Ca2RuO4 by uniaxial pressure International conference

R. Ishikawa, H. Taniguchi, S. K. Goh, S. Yonezawa, F. Nakamura, Y. Maeno

26th International Conference on Low Temperature Physics 2011.8.10

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Ca置換PrBa2Cu4O8系銅酸化物の相図と熱輸送特性

本波和真, 松川倫明, 谷口晴香, 萩原亮, 佐々木孝彦, 高橋弘紀

日本物理学会 2020年秋季大会 2020.9.8

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CaMnO3単結晶の育成およびCaMn0.8Sb0.2O3多結晶の誘電率測定

2017.3.2

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CaMnO3単結晶の基礎物性と誘電特性

2017.9.21

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CaMn1-xSbxO3の熱力学物性へのSb置換効果

2018.3.22

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CaMn0.8Ru0.2O3のSr置換効果と電子相図

2016.9.13

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CaMn0.8Ru0.2O3におけるMnとRuの価数および磁気特性に対するSr置換効果

2016.3.19

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CaMn0.85Sb0.15O3の誘電率の周波数依存性と圧力効果

谷口晴香, 定光健介, 遠山友貴, 港川大成, 小林悟, 松川倫明, R. Suryanarayanan

日本物理学会第76回年次大会(2021年) 2021.3.12

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CaMn0.85Sb0.15O3における負の磁気誘電効果とポーラロン緩和

谷口晴香, 定光健介, 小林悟, 松川倫明, R. Suryanarayanan, 佐々木菜絵, 山口隼平, 渡辺孝夫

日本物理学会 2020年秋季大会 2020.9.8

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Bサイトを置換したダブルペロブスカイト Ba2Pr(Bi, Sb)O6 の電子状態計算

西館数芽, 松川倫明, 谷口晴香, 松下明行, 谷林慧, 長谷川正之

日本物理学会2019年秋季大会 2019.9.10

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Bi-richなBi-2212単結晶の輸送特性III

渡辺孝夫, 川村圭輔, 山口隼平, 佐々木菜絵, 藤井武則A, 木村尚次郎B, 谷口晴香C, 中西良樹C, 吉澤正人C, 三宅厚志D, 金道浩一D, 巴山顕E, 掛谷一弘E

日本物理学会第74回年次大会 2019.3.14

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Bi-richなBi-2212単結晶の輸送特性(II)

川村圭輔, 山口隼平, 佐々木菜絵, 藤井武則A, 木村尚次郎B, 谷口晴香C, 中西良樹C, 吉澤正人C, 三宅厚志D, 金道浩一D, 渡辺孝夫

日本物理学会2018年秋季大会 2018.9.9

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Bi-richなBi-2212単結晶の輸送特性

2018.3.22

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Bi-2223単結晶の面内抵抗率・ホール係数・磁気抵抗 (II)

山口隼平, 佐々木菜絵, 足立伸太郎, 藤井武則, 木村尚次郎, 野地尚, 谷口晴香, 松川倫明, 三宅厚志, 金道浩一, 渡辺孝夫

日本物理学会第75回年次大会 2020.3.16

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Bi-2223単結晶の面内抵抗率・ホール係数・磁気抵抗

山口隼平, 佐々木菜絵, 足立伸太郎, 藤井武則, 木村尚次郎, 谷口晴香, 松川倫明, 三宅厚志, 金道浩一, 渡辺孝夫

日本物理学会2019年秋季大会 2019.9.10

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Ba2PrBiO6とその関連物質のバンド計算

2017.9.21

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Ba2PrBi1-xSbxO6の第一原理電子構造計算

西館数芽, 青山修也, 松川倫明, 谷口晴香, 谷林慧A, 長谷川正之

日本物理学会2018年秋季大会 2018.9.9

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電子ドープ型マンガン酸化物CaMn1-xSbxO3の誘電率の温度特性と磁気転移

2015.9.16

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電着法によるPr2Ba4Cu7O15超伝導膜の作製と磁場配向

熊谷凌, 松川倫明, 谷口晴香, 萩原亮A

日本物理学会2018年秋季大会 2018.9.9

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電着法によるPr2Ba4Cu7O15銅酸化物の合成と物性評価

2017.9.21

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電着法によるPr2Ba4Cu7O15銅酸化物の酸素アニールによる物性評価

2018.3.22

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電荷整列マンガン酸化物Ca1-xSrxMn0.8Sb0.2O3の電気磁気効果に対するSr置換効果

2017.3.17

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TeアニールされたFeTe1-xSex単結晶の超伝導揺らぎの開始温度

渡辺孝夫, 上薗優, 富取洋俊, 原田圭市, 谷口晴香, 松川倫明, 中西良樹, 吉澤正人, 藤井武則

日本物理学会第76回年次大会(2021年) 2021.3.12

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金属二重鎖系Pr2Ba4Cu7O15-δ超伝導体の磁気抵抗の圧力効果

2015.9.16

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金属二重鎖系Pr2Ba4Cu7O15-δ超伝導体の磁気抵抗の圧力依存性

2016.9.13

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金属二重鎖系Pr2Ba4Cu7O15-δの輸送特性の圧力効果

2016.3.19

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金属二重鎖系Pr2Ba4Cu7O15-dの超伝導と結晶構造への圧力効果

谷口晴香, 高橋陸, 村上真俊, 熊谷凌, 中山敦子, 松川倫明, 中野智志A, 萩原亮B, 佐々木孝彦, 大野義章D, 佐野和博E

日本物理学会2018年秋季大会 2018.9.9

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金属二重鎖系Pr247超伝導体の磁場中輸送特性と電子相図

2014.9.7

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金属2鎖重系Pr2Ba4Cu7O15-δ超伝導体の磁気輸送特性の圧力効果

2017.3.17

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角度分解光電子分光で研究するルテニウム酸化物のコヒーレント-インコヒーレントクロスオーバー

2016.9.13

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磁気抵抗から観たアンダードープBi-2223の超伝導揺らぎ

2018.3.22

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磁化反転型電子ドープマンガン酸化物の熱輸送特性

2015.3.21

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磁化反転を示す電子ドープ型マンガン酸化物の熱輸送特性

2014.9.7

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機能性電子材料における新奇物性～低次元超伝導体への圧力効果および電荷整列由来の新型マルチフェロイクス～

2017.1.20

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層状マンガン酸化物(La0.4Pr0.6)1.2Sr1.8Mn2O7単結晶の磁場中比熱と緩和現象

2015.3.21

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二層型マンガン酸化物(La0.4Pr0.6)1.2Sr1.8Mn2O7の残留磁気比熱の緩和効果

2015.9.16

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二層型マンガン酸化物(La0.4Pr0.6)1.2Sr1.8Mn2O7の残留磁気比熱の磁場中緩和効果

2016.3.19

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一軸性圧力下におけるルテニウム酸化物の四端子抵抗測定技術の開発

2013.3.26

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一軸性圧力によるモット絶縁体Ca2RuO4の金属化 –磁性と面内異方性-

2013.9.25

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一軸性圧力によるSr2RuO4とCa2RuO4の基底状態の変化

2012.3.24

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一軸性圧力によるMott絶縁体Ca2RuO4の金属化と磁気転移

2011.3

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一軸性圧力によるCa2RuO4の絶縁体-金属転移

2010.9.23

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レーザー励起型角度分解光電子分光で同定するルテニウム酸化物Sr2RuO4の電子-モードカップリング

2015.9.16

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レーザースピン分解ARPESで観察するSr2RuO4の表面電子状態

2016.9.13

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レーザースピン分解 ARPES を用いたSr2RuO4表面状態のスピン軌道結合の観測

2017.3.17

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モット絶縁体Ca2RuO4への面内一軸性圧力効果

2013.3.26

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ペロブスカイト型マンガン酸化物CaMn1-xSbxO3の磁化反転の起源の解明

関川曉, 石井祐太, 山本孟, 木村宏之, 谷口晴香, 松川倫明, 東正樹, 本田孝志, 大友季哉, 佐賀山基

日本物理学会2019年秋季大会 2019.9.10

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ペロブスカイト型マンガン酸化物CaMn1-xSbxO3の構造と磁性

関川曉, 石井祐太, 山本孟, 木村宏之, 谷口晴香A, 松川倫明A, 尾形昂洋B, 東正樹B, 本田孝志C, 大友季哉C

日本物理学会2018年秋季大会 2018.9.9

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ダブルペロブスカイト酸化物Ba2TbBiO6のSb置換効果と物性評価

辻峻介, 佐藤愛里沙, 松川倫明, 谷口晴香, 松下明行, Zhang Kun

日本物理学会第76回年次大会(2021年) 2021.3.12

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ダブルペロブスカイト酸化物Ba2Tb(Bi,Sb)O6の合成と物性評価

佐藤愛里沙, 伊藤豊, 松川倫明, 谷口晴香, 松下明行, Zhang Kun

日本物理学会第75回年次大会 2020.3.16

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ダブルペロブスカイト酸化物Ba2PrBiO6の置換効果と磁性

2016.9.13

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ダブルペロブスカイト酸化物Ba2Pr(Bi,Sb)O6の価数共存状態と光触媒効果

佐藤愛里沙, 辻峻介, 松川倫明, 谷口晴香, 西館数芽, 會澤純雄, 松下明行, Zhang Kun

日本物理学会 2020年秋季大会 2020.9.8

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ダブルペロブスカイト酸化物Ba2Pr(Bi,Sb)O6のサイトレイト法による合成と物性評価

佐藤愛里沙, 伊藤豊, 松川倫明, 谷口晴香, 松下明行

日本物理学会2019年秋季大会 2019.9.10

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ダブルペロブスカイト系Ba2Pr(Bi1-xSbx)O6の置換効果とバンドギャップ制御

伊藤豊, 小野寺勘, 松川倫明, 谷口晴香, 西館数芽, 松下明行A

日本物理学会2018年秋季大会 2018.9.9

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ダブルペロブスカイト系Ba2Pr(Bi1-xSbx)O6の光触媒特性に対する置換効果

2017.9.21

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ダブルペロブスカイト新物質の合成と物性評価

遠山友貴, 谷口晴香, 定光健介, 日景大雅, 宮脇一綺, 松川倫明

日本物理学会第76回年次大会(2021年) 2021.3.12

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ダブルペロブスカイトBa2Pr(Bi1-xSbx)O6の置換効果と光学特性

2017.3.17

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ダブルペロブスカイト Ba2PrBiO6 のBサイト置換効果：第一原理電子構造計算

西館数芽, アシィアディコ, 三田宙知, 松川倫明, 谷口晴香, 松下明行, 谷林慧, 長谷川正之

日本物理学会 2020年秋季大会 2020.9.8

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ダブルペロブスカイト Ba2Pr(Bi, Sb)O6 のハイブリッド汎関数によるバンド計算

アシィアディコ, 松川倫明, 谷口晴香, 松下明行, 谷林慧, 長谷川正之, 西館数芽

日本物理学会第75回年次大会 2020.3.16

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オーバードープBi-2223単結晶の面内抵抗率・ホール係数・磁気抵抗

山口隼平, 佐々木菜絵, 足立伸太郎, 藤井武則, 野地尚, 谷口晴香, 松川倫明, 三宅厚志, 石川孟, 金道浩一, 渡辺孝夫

日本物理学会 2020年秋季大会 2020.9.8

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エネルギー問題の解決を目指した、強相関d電子系酸化物における機能性材料の開拓

谷口晴香, 江居宏美, 渡辺孝夫, 中山敦子

北東北女性研究者研究・交流フェア2018 2018.9.19

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アンダードープBi-2223の磁場中輸送特性

山口隼平, 佐々木菜絵, 川村圭輔, 足立伸太郎A, 藤井武則B, 木村尚次郎, 伊藤利充D, 谷口晴香E, 中西良樹E, 吉澤正人E, 三宅厚志F, 金道浩一F, 渡辺孝夫

日本物理学会2018年秋季大会 2018.9.9

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「- エネルギー問題の解決を目指した、強相関d電子系酸化物における機能性材料の開拓 - 電荷整列型マルチフェロイクスの単結晶化と異方性解明に向けて」

2017.9.15

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Uniaxial pressure effects on Sr2RuO4 and Ca2RuO4 International conference

H. Taniguchi, R. Ishikawa, S. Kittaka, S. Yonezawa, F. Nakamura, S. K. Goh, Y. Maeno

Strongly Correlated Electron Systems 2011 2011.8.29

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The magnetic anomaly and the thermodynamic properties of the charge-ordered system Ca1-xSrxMn1-ySbyO3 International conference

H. Taniguchi, A. Terui, S. Kobayashi, M. Matsukawa, R. Suryanarayana

International Conference on Magnetism 2018 2018.7.15

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金属二重鎖系Pr2Ba4Cu7O15超伝導体の磁化と輸送特性の圧力効果

2015.3.21

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電子ドープ型マンガン酸化物Ca1-xSrxMn0.85Sb0.15O3の磁場中誘電率

2016.3.19

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電子ドープマンガン酸化物CaMn0.85Sb0.15O3の磁気・誘電特性への圧力効果

定光健介, 谷口晴香, 遠山友貴, 吉田一智, 小林悟, 松川倫明, R. Suryanarayanan

日本物理学会 2020年秋季大会 2020.9.8

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金属二鎖重系Pr2Ba4Cu7O15-δ超伝導体の輸送特性の圧力効果

2017.9.21

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金属二鎖重系Pr2Ba4Cu7O15-δ超伝導体の圧力下の磁気輸送特性

2018.3.22

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金属二重鎖系超伝導体Pr2Ba4Cu7O15の磁場中比熱と磁気輸送特性の圧力効果

2015.3.7

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To the head of Presentations.▲

KAKENHI (Grants-in-Aid for Scientific Research) 5

可視光応答型ダブルペロブスカイト半導体薄膜の高機能化と光触媒物性の解明

2019.4 - 2022.3

日本学術振興会科学研究費助成事業基盤研究(C)

松川倫明, 谷口晴香, 西館数芽

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Grant type：Competitive

ホンダ・フジシマ効果を基礎として開発された光触媒技術は，有害化学物質の分解などの環境浄化や水分解などの持続可能な次世代のエネルギー技術として期待されている。
酸化チタンに代わる光触媒材料として有望なダブルペロブスカイト型酸化物半導体の磁場配向薄膜試料を作製し，構造評価，磁気特性，電子状態、光学特性及び光触媒特性の評価を行う。さらに第一原理計算により当該物質の結晶構造から電子構造を推定し，光触媒特性の基礎物性と高機能化の条件を解明する。
ホンダ・フジシマ効果を基礎として開発された光触媒技術は，有害化学物質の分解などの環境浄化や水分解などの持続可能な次世代のエネルギー技術として期待されている。本研究では，酸化チタンに代わる新規な光触媒物質として有望な可視光応答型ダブルペロブスカイト型酸化物半導体を創製し，その基礎物性を調査し，f電子の価数揺動と関連する異常な光触媒特性の機構解明を目的とする。
2019年度は、Ba2PrBiO6母物質のBiサイトを元素置換した良質な粉末試料をサイトレイト法により作製し，結晶構造評価，磁気特性，電子状態，光学特性及び光触媒特性の評価を実行した。さらに第一原理計算により当該物質の結晶構造から電子構造を推定し，元素置換によるバンドギャップ制御，混合原子価型元素のキャリア再結合抑制効果および試料作製プロセスに依存する結晶粒の組織制御の３つの観点から光触媒特性の高機能化の条件を解明した。
１．サイトレイト法作製により均一で微細な結晶粒を合成することが可能となった。特に結晶粒の微細化により比表面積が向上した。Sbの置換量に対する相図を作成し、低置換で単斜晶構造、極端ドープで菱面体構造、中間ドープ域で相分離状態をとることが分かった。
２．磁気特性からPrイオンは3価と4価の価数共存状態をとり、XPSの結果とも一致する。また、この共存状態が電子とホールの再結合を抑制する電荷分離状態と密接に関係することを説明できるバンドモデルを提案した。
３．ガスクロやメチレンブルー分解の実験より、可視光応答型の光触媒効果を実証し、特に高い触媒効果は試料作製プロセス、価数共存状態及びバンドギャップに密接に関係することが分かった。
サイトレイト法作製により均一で微細な光触媒用結晶粒を合成することが可能となり、固相反応で作成した試料に比べ２倍以上高い触媒特性を示すことが分かった。また、
Prイオンは3価と4価の価数共存状態をとり、この共存状態が電子とホールの再結合を抑制する電荷分離状態と密接に関係することをバンドモデルにより解明した。
Ba2PrBiO6母物質のBiサイトを元素置換し,母物質の組成を制御した磁場配向薄膜試料を作製し，構造評価，磁気特性，電子状態、光学特性及び光触媒特性の評価を行う。
可視光応答型ダブルペロブスカイト型酸化物半導体の特異な光触媒特性とその機構解明

2019.4 - 2020.3

池谷科学技術振興財団池谷科学技術振興財団助成金

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Authorship：Principal investigator
可視光応答型ダブルペロブスカイト酸化物半導体薄膜の創製と光触媒物性の解明

2018.11 - 2021.3

マツダ財団第３４回マツダ研究助成金

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Authorship：Principal investigator
電荷整列系マンガン酸化物における新型マルチフェロイクスの開拓

2017.4 - 2020.3

日本学術振興会科学研究費助成事業若手研究(B)

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電荷整列系マンガン酸化物における新型マルチフェロイクスの開拓
一軸性圧力で誘起する新奇スピン三重項超伝導

2012.4 - 2014.3

日本学術振興会科学研究費助成事業特別研究員推奨費

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一軸性圧力で誘起する新奇スピン三重項超伝導

To the head of KAKENHI (Grants-in-Aid for Scientific Research).▲

Industrial property rights 2

熱電変換モジュールの製造方法（その１）

福井輝美, 大住真一郎, 小野友里恵, 岩崎健, 藤代博之, 谷口晴香, 笹原隆太

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Announcement no：特開2019-153663 Date announced：2019.9
熱電変換モジュールの製造方法（その２）

福井輝美, 大住真一郎, 小野友里恵, 岩崎健, 谷口晴香, 笹原隆太, 藤代博之

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Announcement no：特開2019-153664 Date announced：2019.9

To the head of Industrial property rights.▲

Teaching Experience (On-campus) 2

物理工学セミナー

2023
物理工学実験第１

2023

To the head of Teaching Experience (On-campus).▲

Teaching Experience (Off-campus) 10

Advanced Training

2020 - 2022 （Iwate University）
Selected Topics in Physics Materials Science and Engineering 2

2018 - 2022 （Iwate University）
物理・材料理工学基礎演習

2016 - 2022 （Iwate University）
物理・材料理工学実験Ⅱ

2016 - 2022 （Iwate University）
基礎ゼミナール

2015 - 2022 （Iwate University）
English Seminar for Science Technology

2014 - 2022 （Iwate University）
Physics Laboratory

2014 - 2022 （Iwate University）
Advanced Research

2014 - 2022 （Iwate University）
フロンティア材料機能工学特別研修

2014 - 2019 （Iwate University）
マテリアル工学実験Ⅱ

2014 - 2015 （Iwate University）

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To the head of Teaching Experience (Off-campus).▲

Social Contribution 2

テクノシンポジウム名大2023

Role(s)：Presenter,　Planner,　Organizing member

名古屋大学工学部テクノシンポジウム名大2023 2023.11
女子学生のための理系進学セミナー

Role(s)：Lecturer,　Planner,　Organizing member

日本物理学会名古屋支部 2023.6

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